Pulley-cover.



No. 742,679. PATENTED OUT. 27, 1903.

J. D. KRBISSBR.

PULLEY COVER. APPLICATION FILED FEB. 28. 1903.

K0 MODEL.

au vcnl'oz @Wtnuau I .--D 7 attoenugo UNITED STATES Iatented October 27, 1903.

PATENT QEETCE.

JOHN D. KREISSER, OF GLEVELAND, OHIO, ASSIGNOR TO THE PERFECTION PULLEY COVER COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

PU LLEY-COVER.

SPECIFICATION forming part of Letters Patent No. 742,679, dated October 27,

Application filed February 28, 1903. Sa -1N 145.553.

T0 aZZ whom it may concern.

Be it known that 1, JOHN D. KREISSER, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented a new and useful Pulley- (Jover, of which the following is a specification.

This invention relates generally to pulleys, and more particularly to a crown and cover adapted tobe applied to straight-faced pulleys, the object being to provide a crown and cover which will prevent slipping, increase the power transmitted, give a speedy pull with perfect control, and full speed with slack belts.

With these objects in view the invention consists,essentially,in a crown arranged upon a pulley composed of a series of layers, the said crown being covered by a fabric covering which also covers the entire face of the pulley.

The invention consists also in certain details of construction and novelties of combination, all of which will be fully described hereinafter and pointed out in the claims.

In the drawings forming a part of this specification, Figure 1 is a perspective View of aflatfaced pulley crowned and covered in accordance with my invention. Fig. 2 is a face view of a pulley, the covering and crown being broken away and more clearly disclosing the construction of the said crown; and Fig. 3 is a detail sectional view taken through'one face of the pulley and showing the crown and covering also in section.

In carrying out my invention I employ an ordinary straight-faced pulley A, which .is made in one piece, as it will be understood that my invention is not adapted for use upon split pulleys.

In practice I prefer to crown and cover the pulleys before they are placed upon a shaft; but in case a pulley is mounted upon a shaft it can be crowned and covered without removing the same from the shaft. In building the crown upon the face of the pulley I employ a strip of fabric B, preferably made of stout canvas and about one inch in width. This strip is arranged centrally upon the face of the pulley, completely encircling the same, and is secured to the face thereof by any (No model.)

suitable adhesive, the ends of the strips abutting, as shown at 13. Over the strip B I arrange a second strip of fabric C, said strip 0 being of substantially the same material as the strip B; but the strip O is considerably wider than the strip B. In practice where the strip B is one inch in width strip 0 will be three inches in width. This second strip 0 completely encircles the pulley and strip B, overlapping said strip B upon both sides, and this second strip 0 is securely cemented to strip B and also to the face of the pulley, and its ends are made abutting. The third strip D, also a fabric and of a width greater than a second strip 0, is arranged to encircle the pulley and the strips B and C, said strip D overlapping the strip 0 upon both sides, and it is secured to the said strip 0 and also to the face of the pulley by suitable adhesives, and its ends are also made to abut.

It will, of course, be understood that in practice I prefer to break the joints of the strips, thereby avoiding two or more joints occurring at the same point. Any number of strips can be employed and secured in the manner just described until the fiat-faced pulley has had a crown of sufficient height built thereon. After a crown of suflicient height has been built the pulley, with the crown thereon, is covered by a fabric covering E, preferably of stout canvas and of a width equal to the width of the face of the pulley, and this covering is cemented to the crown and face of the pulley and its ends are made to abut, as shown at E in Fig. 1. By having the ends of the various strips abut instead of overlap I secure a thoroughly even and circular surface, whereas if the joints overlapped an irregular surface would be made at the joint.

The pulley having my improvement applied thereto will be found more efficient and likewise more economical than the ordinary flat-faced pulleys now in common use.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1'. A crown for pulleys consisting of a series of layers of fabric arranged upon the face of the pulley each layer being secured to the face of the pulley and to the next adjacent layer, each successive layer being wider than the next adjacent one.

2. A pulleyhaving a crown arranged thereon, said crown consisting of a plurality of strips of fabric, each strip being secured to the face of the pulley and also to the next adjacent strip, each successive strip being Wider than the preceding strip applied and a covering adapted to cover the crown and the face of the pulley, said covering being secured to the crown and face of the pulley.

3. A pulley havinga narrow strip of fabric, arranged centrally thereon and secured thereto, a second strip of fabric encircling the pul- JOHN D. KREISSER.

Witnesses:

JOHN OASNER, CHESTER PLEADWELL. 

